Its is 1 and a half mm.. I have measured it a few times because it looks more in the pictures..I would like to send it to you for re grinding , I don't really care about money . It's just digits on online banking that change and move about

In saying that though I think the best option if for me to hone out "A" . Should be ok, I hope.

I'd rather save you for a full restoration down the line.. Get some of those cobalt burl scales and I'd like to judge your restoration skills